Finding the Fourth Proportional to 71,300.73, 107,056.23 and 39,772.39

Step by Step Solution

1. Step 1: Write the proportion equation
   71,300.73 : 107,056.23 = 39,772.39 : x
2. Step 2: Convert to fraction form
   71,300.73/107,056.23 = 39,772.39/x
3. Step 3: Cross multiply
   71,300.73x = 107,056.23 × 39,772.39
4. Step 4: Simplify right side
   71,300.73x = 4,257,882,131.49
5. Step 5: Solve for x
   x = 4,257,882,131.49/71,300.73
6. Step 6: Final answer
   x = 59,717.23